CAS号： 22204-53-1

分子式： C14H14O3

中文名称： 萘普生

中文同义词： DL萘普生;DL-萘普生;甲氧萘丙酸;萘普生混旋体;消痛灵;消炎宁;（+）-2-甲基-6-甲氧基-2-萘乙酸;萘普生

英文名称： Naproxen

英文同义词： （）-2-（methoxy-2-naphthyl）-propionicacid;（）-2-（methoxy-2-naphthyl）-propionsaeure;（）-propionicaci;（+）-2-（Methoxy-2-naphthyl）-propionic acid;（+）-2-（methoxy-2-naphthyl）-propionicacid;（+）-2-（Methoxy-2-naphthyl）-propionsaeure;（+）-2-naphthaleneaceticaci;（+）-6-Methoxy-alpha-methyl-2-napthaleneacetic acid

EINECS号： 244-838-7

分子量： 230.26

熔点： 152-154 °C（lit.）

 

High quality Naproxen base/22204-53-1
1.CAS No. 22204-53-1
2.Color:White
3.Standard:BP/USP/EP
4.packing: 25kg/drum

Usage:API

 

TEST		SPECIFICATION	RESULT
Characters		A white or almost white crystalline powder	Comply
Id.	A. Specific optical rotation	59° ~ 62°	60.1°
	B.Melting point	154.0~158.0°C	156.0~156.5°C
	C.Specific absorbance	Meet the requirements	Comply
	D.Infrared absorption	Meet the requirements	Comply
Appearance of solution		Clear,not more intense than BY7	Comply
Eantiomeric purity		≤2.5%	0.70%
Related substances
Impurity L		≤0.1%	<0.01%
Unspecified impurities		≤0.1%	0.02%MAX
Total impurities		≤0.3%	0.04%
Heavy metals		≤20ppm	<20ppm
Loss on drying		≤0.5%	0.01%
Sulphate ash		≤0.1%	0.01%
Assay		99.0%~101.0%	99.70%